Fire-fighting pipe air-tight seal detection equipment

Abstract

The utility model relates to the technical field of pipeline detection, and particularly discloses fire-fighting pipe air-tight seal detection equipment, which comprises a rectangular frame, a pressurizing column arranged at the upper end of the rectangular frame, a tail column arranged at the lower end of the rectangular frame, two side clamping plates arranged on opposite sides of the rectangular frame, and a plurality of elastic connecting pieces arranged between the side clamping plates and the rectangular frame. The first air bag piece sleeves the outer side of the pressurizing column; the second air bag piece sleeves the outer side of the tail column, and the power assembly is arranged in the rectangular frame and used for pushing the two side clamping plates to be opened from the two sides of the rectangular frame so that the rectangular frame can be fixed to the center of the pipeline. After the pressurizing column, the rectangular frame and the tail column are led into the pipeline, the power assembly can push the two side clamping plates to be opened, the rectangular frame, the pressurizing column and the tail column are fixed to the center of the pipeline in advance, the air bag piece is expanded to block the pipeline, the expanded position of the air bag piece is located in the center of the pipeline, and therefore the dislocation problem is avoided; and the double-sealing structure can ensure that the pipeline can be fully sealed, and the reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline detection, in particular to a fire protection pipe air-tightness detection device. Background Art

[0002] The air tightness detection of fire protection pipes is a very important part of the fire protection system maintenance process. When a fire occurs, effective airtight sealing can limit the spread of fire through the pipes and reduce the damage to the building. By ensuring the air tightness of fire protection pipes, sufficient supply of fire water can be guaranteed, and the fire extinguishing efficiency can be improved, thereby protecting people's lives and property.

[0003] The Chinese patent with application number CN202221464179.2 discloses a fire-fighting pipe air tightness detection device, including a fire-fighting pipe, the end of which is fixedly connected with a mounting flange, and the end of which is sleeved with a sealing frame. The device can close both ends of the fire-fighting pipe and detect the air tightness of the fire-fighting pipe by applying air pressure inside the telescopic air pump box. However, since the fixing of the detection device is only completed by the limiting structure on the outside of the sealing frame, when the air pressure applied in the pipe is very high, the sealing frame and the entire detection device will be at risk of being rushed out of the pipe through the single fixing method of the sealing frame, and the reliability is poor. Utility Model Content

[0004] In view of the above problems, the utility model proposes a fire pipe air tightness detection device to solve the disadvantage of poor reliability of existing detection equipment, that when the air pressure applied in the pipeline is very high, the sealing frame and the entire detection device will be at risk of being rushed out of the pipeline through a single fixing method of the sealing frame, thereby solving the problem of poor reliability.

[0005] To achieve the purpose of the utility model, the utility model is implemented by the following technical solutions: a fire pipe airtightness detection device, including a rectangular frame, a booster column is provided at the upper end of the rectangular frame, a tail column is provided at the lower end of the rectangular frame, the booster column and the tail column are fixedly connected to the rectangular frame, and also includes:

[0006] Two side clamps are arranged on opposite sides of the rectangular frame, and a plurality of elastic connecting members are provided between the side clamps and the rectangular frame;

[0007] A first airbag member is sleeved on the outside of the boost column and is used to block the pipeline from the outside of the boost column;

[0008] The second airbag member is sleeved on the outside of the tail pillar and is used for secondary plugging of the pipeline from the outside of the tail pillar;

[0009] The power assembly is placed in the rectangular frame and is used to push the two side clamping plates to open from both sides of the rectangular frame to fix the rectangular frame in the center of the pipeline.

[0010] A further improvement is that an air injection valve is provided at one end of the boost column away from the rectangular frame, the air injection valve is connected to a first hollow rod arranged in the rectangular frame, the first hollow rod is fixedly connected to the rectangular frame, and the first hollow rod is connected to a first air pipe arranged at the lower end of the tail column.

[0011] A further improvement is that the first airbag component includes a first airbag, the first airbag is sleeved on the outside of the boost column, the first airbag is fixedly connected to the boost column, the first airbag is connected to a second hollow rod arranged in a rectangular frame, the second hollow rod is fixedly connected to the rectangular frame, and the second hollow rod is connected to a second air pipe arranged at the lower end of the tail column.

[0012] A further improvement is that the second airbag component includes a second airbag, the second airbag is sleeved on the outside of the tail pillar, the second airbag is fixedly connected to the tail pillar, and the second airbag is connected to a third air pipe arranged at the lower end of the tail pillar.

[0013] A further improvement is that the power assembly includes an electric push rod, a first oblique wedge block and two second oblique wedge blocks, the mounting end of the electric push rod is fixedly connected to the rectangular frame and the tail column, the output end of the electric push rod is fixedly connected to the first oblique wedge block, the two second oblique wedge blocks are arranged on opposite sides of the first oblique wedge block, the second oblique wedge blocks are slidably connected to the first oblique wedge block, one end of the second oblique wedge block away from the first oblique wedge block is fixedly connected to the side clamp, and a sliding groove allowing the second oblique wedge blocks to slide is opened on the opposite side of the rectangular frame.

[0014] A further improvement is that the first hollow rod and the second hollow rod penetrate the first oblique wedge block, and the first oblique wedge block is slidably connected to the first hollow rod and the second hollow rod.

[0015] A further improvement is that the elastic connecting piece includes a spring column and a spring, one end of the spring column is fixedly connected to the side clamp plate, the other end of the spring column is inserted into a pin groove opened on the outside of the rectangular frame, the spring column is slidably connected to the pin groove, the spring is sleeved on the outside of the spring column, and the two ends of the spring are respectively fixedly connected to the rectangular frame and the side clamp plate.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] After the boost column, rectangular frame and tail column are passed into the pipeline, the power assembly will push the two side clamps to open, pre-fix the rectangular frame, boost column and tail column in the middle of the pipeline, and the airbag will expand to seal the pipeline. The position where the airbag expands is located in the middle of the pipeline, so there will be no misalignment problem. The double-closed structure can also ensure that the pipeline can be fully sealed with high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 It is a structural diagram of the first airbag in the utility model.

[0020] Figure 2 It is a structural diagram of the second airbag in the utility model.

[0021] Figure 3 It is a structural diagram of a rectangular frame in the utility model.

[0022] Figure 4 It is a structural diagram of a part of the middle side splint of the utility model.

[0023] Among them: 1. boost column; 2. air injection valve; 3. first air bag; 4. rectangular frame; 5. side clamp; 6. elastic connector; 61. spring column; 62. spring; 7. tail column; 8. second air bag; 9. electric push rod; 10. first air pipe; 11. second air pipe; 12. third air pipe; 13. first oblique wedge block; 14. second oblique wedge block; 15. slide groove; 16. first hollow rod; 17. second hollow rod. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] according to Figure 1 , 2 As shown in FIGS. 3 and 4, in this embodiment, a fire hose air tightness detection device is proposed, including a rectangular frame 4, a boost column 1 is provided at the upper end of the rectangular frame 4, a tail column 7 is provided at the lower end of the rectangular frame 4, the boost column 1 and the tail column 7 are both fixedly connected to the rectangular frame 4, and also includes:

[0026] Two side clamping plates 5 are arranged on opposite sides of the rectangular frame 4, and a plurality of elastic connecting members 6 are provided between the side clamping plates 5 and the rectangular frame 4;

[0027] The first airbag member is sleeved on the outside of the booster column 1 and is used to block the pipeline from the outside of the booster column 1;

[0028] The second airbag member is sleeved on the outside of the tail pillar 7 and is used for secondary blocking of the pipeline from the outside of the tail pillar 7;

[0029] The power assembly is placed in the rectangular frame 4 and is used to push the two side clamping plates 5 to open from both sides of the rectangular frame 4 to fix the rectangular frame 4 in the center of the pipeline.

[0030] After the boost column 1, the rectangular frame 4 and the tail column 7 are passed into the pipeline, the power assembly will push the two side clamps 5 to open from both sides of the rectangular frame 4, and the rectangular frame 4, the boost column 1 and the tail column 7 will be pre-fixed in the middle of the pipeline. The first airbag expands to initially block the pipeline from the head end of the rectangular frame 4, and the second airbag expands to secondary block the pipeline from the end of the rectangular frame 4. The boost column 1 pressurizes the pipeline and detects the pressure change in the pipeline. The expanded position of the airbag is located in the middle of the pipeline, so there will be no misalignment problem. The double-enclosed structure can also ensure that the pipeline can be fully sealed, with high reliability.

[0031] It is worth further explaining that an air injection valve 2 is provided at one end of the boost column 1 away from the rectangular frame 4, the air injection valve 2 is connected to a first hollow rod 16 arranged in the rectangular frame 4, the first hollow rod 16 is fixedly connected to the rectangular frame 4, and the first hollow rod 16 is connected to a first air pipe 10 arranged at the lower end of the tail column 7.

[0032] In addition to the air injection valve 2, the top of the booster column 1 is also provided with pressure detection elements such as air pressure sensors. The external pump body increases the pressure in the pipeline through the second air pipe 11, the first hollow rod 16 and the air injection valve 2. The air injection valve 2 will detect the changes in air pressure in the closed pipeline in real time through the sensor.

[0033] About the first airbag:

[0034] The first airbag component includes a first airbag 3, which is sleeved on the outside of the boost column 1, and is fixedly connected to the boost column 1. The first airbag 3 is connected to a second hollow rod 17 provided in a rectangular frame 4, and the second hollow rod 17 is fixedly connected to the rectangular frame 4, and the second hollow rod 17 is connected to a second air pipe 11 provided at the lower end of the tail column 7.

[0035] After the boost column 1, the rectangular frame 4 and the tail column 7 are introduced into the pipeline, the external pump passes the gas into the first airbag 3 through the second air pipe 11 and the second hollow rod 17. After the first airbag 3 expands, it contacts the inner wall of the pipeline to preliminarily block the pipeline.

[0036] About the second airbag:

[0037] The second airbag component includes a second airbag 8 , which is sleeved on the outside of the tail pillar 7 , fixedly connected to the tail pillar 7 , and communicated with a third air pipe 12 arranged at the lower end of the tail pillar 7 .

[0038] After the boost column 1, the rectangular frame 4 and the tail column 7 are introduced into the pipeline, the external pump passes the gas into the second air bag 8 through the third air pipe 12. After the second air bag 8 expands, it contacts the inner wall of the pipeline, and the pipeline is sealed for the second time from the end of the rectangular frame 4.

[0039] For the specific structure of the power assembly, please refer to the following description.

[0040] The power assembly includes an electric push rod 9, a first inclined wedge block 13 and two second inclined wedge blocks 14. The installation end of the electric push rod 9 is fixedly connected to the rectangular frame 4 and the tail column 7. The output end of the electric push rod 9 is fixedly connected to the first inclined wedge block 13. The two second inclined wedge blocks 14 are arranged on the opposite side of the first inclined wedge block 13. The second inclined wedge block 14 is slidably connected to the first inclined wedge block 13. The end of the second inclined wedge block 14 away from the first inclined wedge block 13 is fixedly connected to the side clamping plate 5. A sliding groove 15 is provided on the opposite side of the rectangular frame 4 to allow the second inclined wedge block 14 to slide. The first inclined wedge block 13 and the second inclined wedge block 14 constitute an inclined wedge mechanism, in which the first inclined wedge block 13 is an active inclined wedge, which acts as a force-applying body during operation. The second inclined wedge block 14 is a working inclined wedge, which is a force-bearing body. The electric push rod 9 is the power unit, which converts the vertical movement of the active inclined wedge into the horizontal movement of the working inclined wedge.

[0041] It should be further explained that the first hollow rod 16 and the second hollow rod 17 penetrate the first inclined wedge block 13 , and the first inclined wedge block 13 is slidably connected to the first hollow rod 16 and the second hollow rod 17 .

[0042] The working principle of the power assembly is:

[0043] After the rectangular frame 4 is placed in the pipe, the electric push rod 9 pushes the first oblique wedge 13, and the first oblique wedge 13 slides along the first hollow rod 16 and the second hollow rod 17. The first hollow rod 16 and the second hollow rod 17 guide the first oblique wedge 13, and the inclined surface of the first oblique wedge 13 contacts the second oblique wedge 14. When the first oblique wedge 13 is subjected to external force in the vertical direction, due to the existence of the inclined surface, this vertical force will be decomposed into horizontal or inclined direction components, thereby pushing the second oblique wedge 14 to open on both sides of the first oblique wedge 13, and the side clamps 5 open synchronously.

[0044] About elastic connector 6:

[0045] The elastic connector 6 includes a spring column 61 and a spring 62. One end of the spring column 61 is fixedly connected to the side clamping plate 5. The other end of the spring column 61 is inserted into a pin slot provided on the outside of the rectangular frame 4. The spring column 61 is slidably connected to the pin slot. The spring 62 is sleeved on the outside of the spring column 61. The two ends of the spring 62 are respectively fixedly connected to the rectangular frame 4 and the side clamping plate 5. The side clamping plate 5 is movably connected to the rectangular frame 4 through the spring column 61 and the spring 62. When the power assembly stops pushing the side clamping plate 5, the spring 62 will pull the side clamping plate 5 to reset and stop fixing the rectangular frame 4.

[0046] How this application works:

[0047] After the boost column 1, the rectangular frame 4 and the tail column 7 are passed into the pipeline, the power assembly will push the two side clamps 5 to open from both sides of the rectangular frame 4, and the rectangular frame 4, the boost column 1 and the tail column 7 will be pre-fixed in the middle of the pipeline. The first airbag expands to initially block the pipeline from the head end of the rectangular frame 4, and the second airbag expands to secondary block the pipeline from the end of the rectangular frame 4. The boost column 1 pressurizes the pipeline and detects the pressure change in the pipeline. The expanded position of the airbag is located in the middle of the pipeline, so there will be no misalignment problem. The double-enclosed structure can also ensure that the pipeline can be fully sealed, with high reliability.

[0048] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0049] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A fire-fighting pipe air-tightness detection device, comprising a rectangular frame (4), wherein a boost column (1) is provided at the upper end of the rectangular frame (4), and a tail column (7) is provided at the lower end of the rectangular frame (4), wherein the boost column (1) and the tail column (7) are both fixedly connected to the rectangular frame (4), and characterized in that: Also includes: Two side clamping plates (5) are arranged on opposite sides of the rectangular frame (4), and a plurality of elastic connecting members (6) are provided between the side clamping plates (5) and the rectangular frame (4); A first airbag component is sleeved on the outside of the booster column (1) and is used to block the pipeline from the outside of the booster column (1); A second airbag component is sleeved on the outside of the tail column (7) and is used for secondary blocking of the pipeline from the outside of the tail column (7); The power assembly is placed in the rectangular frame (4) and is used to push the two side clamping plates (5) to open from both sides of the rectangular frame (4) to fix the rectangular frame (4) in the middle of the pipeline.

2. A fire protection pipe air tightness detection device according to claim 1, characterized in that: An air injection valve (2) is provided at one end of the boost column (1) away from the rectangular frame (4); the air injection valve (2) is communicated with a first hollow rod (16) provided in the rectangular frame (4); the first hollow rod (16) is fixedly connected to the rectangular frame (4); the first hollow rod (16) is communicated with a first air pipe (10) provided at the lower end of the tail column (7).

3. A fire protection pipe air tightness detection device according to claim 2, characterized in that: The first airbag component comprises a first airbag (3), the first airbag (3) is sleeved on the outside of the boost column (1), the first airbag (3) is fixedly connected to the boost column (1), the first airbag (3) is connected to a second hollow rod (17) arranged in the rectangular frame (4), the second hollow rod (17) is fixedly connected to the rectangular frame (4), and the second hollow rod (17) is connected to a second air pipe (11) arranged at the lower end of the tail column (7).

4. A fire protection pipe air tightness detection device according to claim 1, characterized in that: The second airbag component comprises a second airbag (8), the second airbag (8) is sleeved on the outside of the tail pillar (7), the second airbag (8) is fixedly connected to the tail pillar (7), and the second airbag (8) is connected to a third air pipe (12) arranged at the lower end of the tail pillar (7).

5. The fire protection pipe air tightness detection device according to claim 3, characterized in that: The power assembly comprises an electric push rod (9), a first inclined wedge block (13) and two second inclined wedge blocks (14); the mounting end of the electric push rod (9) is fixedly connected to the rectangular frame (4) and the tail column (7); the output end of the electric push rod (9) is fixedly connected to the first inclined wedge block (13); the two second inclined wedge blocks (14) are arranged on opposite sides of the first inclined wedge block (13); the second inclined wedge block (14) is slidably connected to the first inclined wedge block (13); one end of the second inclined wedge block (14) away from the first inclined wedge block (13) is fixedly connected to the side clamping plate (5); and a sliding groove (15) for allowing the second inclined wedge block (14) to slide is provided on the opposite side of the rectangular frame (4).

6. A fire protection pipe air tightness detection device according to claim 5, characterized in that: The first hollow rod (16) and the second hollow rod (17) penetrate the first inclined wedge block (13), and the first inclined wedge block (13) is slidably connected to the first hollow rod (16) and the second hollow rod (17).

7. A fire protection pipe air-tightness detection device according to claim 5, characterized in that: The elastic connecting member (6) comprises a spring column (61) and a spring (62), one end of the spring column (61) is fixedly connected to the side clamping plate (5), the other end of the spring column (61) is inserted into a pin groove provided on the outside of the rectangular frame (4), the spring column (61) is slidably connected to the pin groove, the spring (62) is sleeved on the outside of the spring column (61), and the two ends of the spring (62) are respectively fixedly connected to the rectangular frame (4) and the side clamping plate (5).

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